Question

情态动词could，might，may,must,can't的用法，要求：一定是初三阶段的。初三EEC学过的，拜托了~~~

Answer 1

must+be+n/adj/pron 只用于肯定句，表示对现在状态和情况的猜测
must+be+doing只用于肯定句，表示对现在正在进行的动作的猜测
may+be+n/pron/adj只用于肯定句，表示对现在状态和情况的猜测
may+be+doing只用于肯定句，表示对现在正在进行的动作的猜测
could/might+have+PP 可用于肯定句、否定句和疑问句，表示过去可能......
can+be+n/pron/adj一般只用于否定句和疑问句。表示对现在状态和情况的猜测，以为不可能...或可能.....吗？
can+be+
doing一般只用于否定句和疑问句表示对完成的事情进行猜测，意为不可能在做或可能在做.....
can+have+pp一般只用于否定句和疑问句。表示对完成的事情进行猜测，意为不可能已经...或可能已经....
累死我了....

Answer 2

A. could:
1. "can" 的过去式:
They asked if I could drive a car; I said I couldn't; She asked if she could go.
2. 表示一种可能: I could go but I'm not going to; I could do it next week if you helped me; you could take the car tomorrow if it's raining; 有礼貌的用法: could I see you tonight? Could you come over here?

B. might:
1. "may" 的过去式: I thought I might find you here.
2. 可能: He might win if he tries hard.
3. 会: You might help me clean the car!

C. May:
1. You may go home now. 可以
2. He may be here, I don't know. 可能
3. May you live a long and happy life. 祝愿

D. must:
1. We must go to the shops to get milk. 必须
2. They must be finding it very difficult to live in such a small house. 很可能
3. You must come home before midnight; All competitors must be under 15 years of age. 应当

E. cannot=can't
1. Can't you drive? 你不会开车?
2. Can't you do it? 你不能做?
3. You can't go if you are below 18 years old. 不可去

Answer 3

1。这些词后面只能接动词原形
2。could 过去不能/委婉请求 Would you please do sth？can't表示“不可能”
3。may, 可能 ；might ，may 的过去式
4。must,表示主观上的“必须” I must finish the homework before ten tonight（我被要求）